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Finding the Fourth Proportional to 62,617.66, 86,421.22 and 38,752.02

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Solution

The fourth proportional to 62,617.66, 86,421.22 and 38,752.02 is: 53,483.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,617.66 : 86,421.22 = 38,752.02 : x
  2. Step 2: Convert to fraction form
    62,617.66/86,421.22 = 38,752.02/x
  3. Step 3: Cross multiply
    62,617.66x = 86,421.22 × 38,752.02
  4. Step 4: Simplify right side
    62,617.66x = 3,348,996,845.86
  5. Step 5: Solve for x
    x = 3,348,996,845.86/62,617.66
  6. Step 6: Final answer
    x = 53,483.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.